<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>吕超英语计算器合集</title>
    <style>
        body {
            font-family: 'Microsoft YaHei', Arial, sans-serif;
            background-color: #f5f5f5;
            display: flex;
            flex-direction: column;
            align-items: center;
            min-height: 100vh;
            margin: 0;
            padding: 20px;
        }

        h1 {
            color: #333;
            margin-bottom: 40px;
        }

        .calculator-container {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            justify-content: center;
        }

        .calculator-card {
            background: white;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            width: 300px;
            text-align: center;
            transition: transform 0.3s ease;
            cursor: pointer;
            text-decoration: none;
        }

        .calculator-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
        }

        .calculator-card h2 {
            color: white;
            margin: 0 0 15px 0;
            padding: 12px;
            border-radius: 8px;
        }

        .douyin {
            background-color: #FF5500;
        }

        .xufei {
            background-color: #1890FF;
        }
        
        .time {
            background-color: #8A2BE2;
        }
        
        .caijian {
            background-color: #00FF00;
        }

        .description {
            color: #666;
            font-size: 14px;
            line-height: 1.6;
        }
    </style>
</head>
<body>
    <h1>请选择你要使用的计算器</h1>
    
    <div class="calculator-container">
        <a href="code/douyin.html" target="_blank" class="calculator-card">
            <h2 class="douyin">30天专用退费计算器</h2>
            <p class="description">适用于：抖店、企微30天订单</p>
        </a>

        <a href="code/xufei.html" target="_blank" class="calculator-card">
            <h2 class="xufei">90天专用退费计算器</h2>
            <p class="description">适用于：抖店、企微90天订单</p>
        </a>
        
        <a href="code/time.html" target="_blank" class="calculator-card">
            <h2 class="time">拉群专用时间计算器</h2>
            <p class="description">适用于：抖店、企微全部订单</p>
        </a>
        
        <!--<a href="code/caijian.html" target="_blank" class="calculator-card">
            <h2 class="caijian">后台海报裁剪工具</h2>
            <p class="description">适用于：后台海报头像上传图片标准化裁剪</p>
        </a>-->
        
    </div>
</body>
</html>